GCSE Physics - Vector Diagrams and Resultant Forces #43
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- Опубликовано: 12 сен 2024
- This video covers:
- How to represent forces with scale diagrams
- Finding the resultant force from vectors
- How to resolve vectors by splitting them into horizontal and vertical components
General info:
- Suitable for all GCSE courses
- See below for whether it is higher or foundation tier for your exam board
- See below for whether it is triple or combined for your exam board
Exam board specific info:
AQA - Free body diagrams are higher tier only
IGCSE Edexcel - You don't need to know this content
Edexcel - Drawing and using free body diagrams is higher tier only
OCR 21st Century - Only need to be able to use scale diagrams if you're higher tier
OCR Gateway - Using free body diagrams is higher tier only
GCSE Chemistry playlist:
• GCSE Chemistry - Atoms...
GCSE Biology Playlist:
• Video
GCSE Physics Playlist:
• Video
If you’d like to practise the material covered in this video, check out our platform at www.cognitoedu.org - it's totally free, and has been built to make learning and revision as easy as possible. The main features are:
- Lessons organised by topic, only the lessons relevant to your specific exam board and tier are shown.
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- Practise quizzes so you can test your knowledge. You can quiz yourself on any combination of topics you like.
- A huge number of fully-hinted questions that take you step-by-step through some of the trickiest calculations & concepts.
- A comprehensive bank of past exam papers, organised both by year, and also by topic.
Amadeus & Tom
oh my god you're a life saver! night before physics test revision sorted- Thank you!!
Haha no worries at all really glad they’re helping
How did you go in that test? #curious
how did the test go ??????
how did it go
How’d it go ?
this is actually easier than i thought, my teacher's explanation made it hard lol thanks!
Yeah! (+ Are you a MIDZY?)
@Cameron Devin why?
@@allyynayy yuppp!
i didn’t expect to find midzys here but hii !! i’m a midzy too
@@blanaidbujo4514 omgg hiiii midzys unite!
people talking about how their teacher's didnt explain this correct but my teacher didnt even explain this lol
Same here
@@jasinsworld3095ugh..I know.
Same 🙃 Didn't know that this even existed ngl
Hahahaha same 😭
Can relate ,sadly😔
I was fully never taught this in my life and I have my paper in less than 2 hours
You can also use Pythagoras theorem for the triangle
Nice!
Lifesaver! thank you!! Got myself into a rabbit hole of a-level physics and you really simplified this for me :)
Thanks aMrIt glad we could help!
can i just say ive been struggling with this for 1.5 years and this short video helped me so much. tyvm!!
sounds like a major skill issue ngl
I felt like this was almost too helpful ,': D
Thank you, This was a part of physics that I had forgotten about and couldn’t find a good explanation of but now I understand.
Ah, well we're very glad we could help Seb 😊
Wow! Great video! I know its the night before the exam, but this will for sure help!
Thank you, I appreciated your lesson about springs, and now after this vid, my gratitude has increased.
these videos are so helpful! appreciate the work that's been put into them. I'll be having a physics test tmrw ;-; wish me luck, and once again, thank you < 33
That was REALLY cool! Bust out that Right Triangle and go to town on that data!
i understood everything about how to calculate vector u explained thanks man
Without you I couldn't have gotten my A*s THANK YOU! ❤❤❤❤
@@duaahmed8645 لا هو انا كان عندي إمتحان فيزياء و مكنتش فاهم الجزئية ديه خااااص
My physics and chemistry teacher was same she was not good at either of these subjects especially physics once i said her to explain vecctors she said i also dont know
So i cane here and found such an amazing video hats off to this video
can you please explain how we decide the direction of the resultant velocity
i mean towards which direction does the arrowhead of the resultant force point 😊😊
Ok so this you’ll have to visualise! If it happened in real life which way would the object move? That would be the direction of the resultant force!
Who is this wonderful man thank you whoever you are i hope your day is going very well THANK YOU VERY VERY MUCH SO MUCH THANK YOU
What if your trying to find the resultant force
scale drawing what? (for the resolving of vectors)
how do you know where to measure the angle?
it's from the north line - just like bearings in maths!
@@randomchild4440 does this apply to all vector diagrams?
@@azlanmahin46 yep! are you in year 10 right now? (revising in summer holidays?)
@@randomchild4440 yep just got promoted. Olevels in 9 months 😔
Brilliant video, thanks.
for the resolve vector example, shouldn't the horizontal and vertical force dotted lines have their arrows on the opposite side? Like left for 40 N and down for 30 N. Otherwise, it isn't tip to tail? Correct me if I'm wrong
yeah thats what I am also thinking so do u know now?
Best teacher ever
So well explained
Hi, How do we know that which side of the triangle we have to measure the angle?
One angle is 90 and other two are unknown.
Then which one shall we measure?
Can someone plz tell
No.
Thank you, you explain so well!
Love you bro❤
By Edexcel Higher do you mean Triple?
cocoa no there different but it applies to triple as well
thank you so much
Can there turning effect of any of the force?
Kindly reply if any one knows....
@@fatimaasif4882 this isnt a part of turning effect of forces. both are different chapters
what is the difference between vector diagrams and resolving the force?
So what you are saying is that the bicycle started going sideways? (East)
Tomorrow was my ppr and it really helped me
oh it didn't really explain the angles tho... transferring angles of the exerted force to the vector diagram?...
Resolving vectors.. where you placed the 5 can any number go there?
5 was the distance in that scenario
Hi, I did these (specifically the particle one and the ramp one) and they didn’t match up at all- even with Pythagoras’ theorem. Can someone tell me what I’ve done wrong?
Did you draw each of the forces to the same scale e.g. 10N = 1cm? It worked for me
@@fifi3928 No, I did 1cm = 1N
@@fifi3928 I still don’t get his answer. Do I not need angles or something?
@@gsjshsduduud9455 well since you changed the scale obviously the results wont match the one in the video
Bruh the first example, I was using trigonometry but u was getting the wrong answer
thanks a lot
Great video, very well explained.
0:52 i just wondering what the point is of moving the measurement up when you will just get the same answer right?
In that way the direction will be wrong
Seeing this video at night before few hrs before exam without sleeping 💀💀💀
best explanation
Thank You so much cognito
Thank you!
very helpful video
Hii! Could u pls make more of these they're rlly helpful especially vector diagrams... Also is it possible if u could do another equilibrium force diagram qn sthg like an object being supported by two strings idk HAHA tysmm
Why wasnt 3 N subtracted from 4 N?
Thanks so much my exam is in 1 hour ❤❤
My teacher, please, I would just like you to finish the maths syllables as well and I bet everyone else would appreciate it too
this guy is litr saving my life
Thank you so much ur video rlly helped!
So he is saying the bycicle started going sideways (east)?
Could you please tell me why 3 N was not subtracted from 4 N? Isnt that how you get the resultant force ?
Thanks!
The arrows aren’t arranged tip to tail in the last diagram, is it ok for it not be arranged tip to tail when resolving vectors?
It doesn't matter, because the force on the toy car must be going upwards for the car to travel that way. It just needs to make sense
he teaches way better than my teachers
Thank you!❤❤❤❤❤
thnx for saving my grade
Thank u so much
Hey thanks for leaving us a comment! Really happy to hear they’re helping you out
R u only doing to scale and not doing the trigonometry way?
You can use pythagoras theorem but other that I'm not sure
Hi there. You can use trigonometry, but it's not covered in all the exam boards, so we chose to do scale drawings instead. If you use trigonometry, then you can use Pythagoras' theorem or SOHCAHTOA if it's a right angle triangle. If it isn't a right angle triangle you would have to use the sine or cosine rule - but you won't get these ones in the GCSE exam. Hope that helps!
You can, but this is a scaled diagram, you can simply measure with a scale
Damn,it is kinda easy, I thought it is hard
❤❤ ur videos.
Bro just use cosine rule or pythag, so much accurate
You don’t even use Cosine Rule. You only need to use Pythagoras or Basic Trigonometry
@@Yasin_2312 u use the cosine rule as: Fx=Fcosθ when finding x components tho
@@bananamilk.__.4344 doesn’t that only apply if it’s a non right angle though
@@Yasin_2312 I think ur talking about the law of cosine: x^2=A^2+B^2-2AB cosθ which is for non right triangles. What I used is SOHCAHTOA. cos=opp/hyp. The formula Fx=Fcosθ (F is the hyp, Fx is the x component)
@@Yasin_2312 OH I JUST REREAD, ur rightt u don't use the cosine rule, sorry
If any one knows ir get my point of asking.. Kindly reply plz ???
Mine didn’t explain this n I got an exam in an hour or two..
Please become my teacher
Easyyy
Sup
Wow,'-D
thank you very much